tragedy in virginia, a mother and two children killed in a terrible fire. tonight, her heroic final moments. >>> also ahead, furniture, boxes, electronics, lining four city blocks, and all of this stuff is from one apartment. the story behind the mess. >>> and he may look like a door to door salesman, but police say he cleaned out a house, and tonight we're talking to the homeowners who caught the so called preppy burglar on camera. >>> we begin tonight with the horrific fire in virginia. i'm shawn yancy. >> and i'm brian bolter. the fire killed a mother and two children and the mother helped save three other children from a burning house. will thomas is live on scene tonight. will. >> reporter: good evening. investigators are still trying to figure out what caused the fire that started about 8:30. you look over there, you can see flash lights. those are firefighters that just showed up looking for any possible rekindling. down here, a tricycle one of the neighbors used throwing it through the window trying to save lives, and as some of these people in this